Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Identifying the hoses

 
Old 05-24-2019, 11:11 AM
  #1  
Honda-Tech Member
Thread Starter
 
Join Date: Apr 2019
Posts: 34
Likes: 0
Received 0 Likes on 0 Posts
Default Identifying the hoses


which hose is this? And it is blocked so does it effect anything. Secondly what is the purpose of that U shape hose beside this blue marked hose? As my heater core is not hooked up

​​​​​​as you can see my heater core is not hooked up so where it goes?
Hasan Khurshid is offline  
Old 05-24-2019, 01:28 PM
  #2  
Honda-Tech Member
 
chrysler kid's Avatar
 
Join Date: Nov 2003
Location: Plano, Texas, USA
Posts: 1,439
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Identifying the hoses

It's your heater bypass hose
chrysler kid is offline  
Old 05-24-2019, 02:47 PM
  #3  
Honda-Tech Member
Thread Starter
 
Join Date: Apr 2019
Posts: 34
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Identifying the hoses

Originally Posted by chrysler kid View Post
It's your heater bypass hose
I think you are saying U shaped is heater bypass but what about the blue marked hose? Can you tell me why heater is bypassed?
Hasan Khurshid is offline  
Old 05-24-2019, 05:55 PM
  #4  
Honda-Tech Member
 
chrysler kid's Avatar
 
Join Date: Nov 2003
Location: Plano, Texas, USA
Posts: 1,439
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Identifying the hoses

Originally Posted by Hasan Khurshid View Post
I think you are saying U shaped is heater bypass but what about the blue marked hose? Can you tell me why heater is bypassed?
Sure. The heater core isnt connected because the previous owner is dumb.

The u shaped hose is on the back of the thermostat housing and circulates the hot water coming out of the cylinder head before the thermostat opens.
chrysler kid is offline  
Old 05-24-2019, 05:56 PM
  #5  
Honda-Tech Member
 
chrysler kid's Avatar
 
Join Date: Nov 2003
Location: Plano, Texas, USA
Posts: 1,439
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Identifying the hoses


chrysler kid is offline  
Old 05-24-2019, 06:04 PM
  #6  
Honda-Tech Member
Thread Starter
 
Join Date: Apr 2019
Posts: 34
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Identifying the hoses

Originally Posted by chrysler kid View Post
Sure. The heater core isnt connected because the previous owner is dumb.

The u shaped hose is on the back of the thermostat housing and circulates the hot water coming out of the cylinder head before the thermostat opens.
Thanks but i am the first owner and the engine swapped from D16y8 to D15z6 so from then it is disconnected and I am from Pakistan so here mechanics are dumb and they disconnected it as they think it will not be used because of weather conditions.

Now I am confused may be the heater core is leaky or damaged and it is very difficult to inspect and remove heater core.



What is this hose for marked red?
Hasan Khurshid is offline  
Old 05-24-2019, 06:14 PM
  #7  
Honda-Tech Member
 
tony_2018's Avatar
 
Join Date: Nov 2005
Location: Austin, Tx
Posts: 12,887
Received 13 Likes on 10 Posts
Default Re: Identifying the hoses

Doesn't look like the heater core is connected to the engine, so you're not getting any heat.
tony_2018 is offline  
Old 05-24-2019, 06:31 PM
  #8  
Honda-Tech Member
Thread Starter
 
Join Date: Apr 2019
Posts: 34
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Identifying the hoses

Originally Posted by tony_2018 View Post
Doesn't look like the heater core is connected to the engine, so you're not getting any heat.
What about this red hose?
Hasan Khurshid is offline  
Old 05-24-2019, 06:32 PM
  #9  
Honda-Tech Member
Thread Starter
 
Join Date: Apr 2019
Posts: 34
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Identifying the hoses

Originally Posted by tony_2018 View Post
Doesn't look like the heater core is connected to the engine, so you're not getting any heat.
Secondly any test to check that heater core is in what condition? As it is very difficult to physically remove it and inspect it.
Hasan Khurshid is offline  
Old 05-24-2019, 08:29 PM
  #10  
Honda-Tech Member
 
Join Date: Jan 2013
Location: The South - Roll Tide !!!
Posts: 3,459
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Identifying the hoses

The barb is broken off of your heater control valve box... and likely why you have the heater core bypassed. The only proper way to test the heater core for leaks is to connect it to the engine and fill the cooling system and warm up the engine to create the proper amount of pressure. If it leaks, you have to pull the dash. If not... you have heat. Find another heater control valve and reconnect.

The hose in your last pic is to the PCV valve which is installed into the oil separator box.
JRCivic1 is offline  
Old 05-24-2019, 10:31 PM
  #11  
Honda-Tech Member
Thread Starter
 
Join Date: Apr 2019
Posts: 34
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Identifying the hoses

Originally Posted by JRCivic1 View Post
The barb is broken off of your heater control valve box... and likely why you have the heater core bypassed. The only proper way to test the heater core for leaks is to connect it to the engine and fill the cooling system and warm up the engine to create the proper amount of pressure. If it leaks, you have to pull the dash. If not... you have heat. Find another heater control valve and reconnect.

The hose in your last pic is to the PCV valve which is installed into the oil separator box.
Thanks for your help. Is there any problem if running the car without heater?
Hasan Khurshid is offline  
Old 05-24-2019, 11:32 PM
  #12  
Honda-Tech Member
 
Freedo_Civegra's Avatar
 
Join Date: Jan 2018
Location: Mississippi
Posts: 1,116
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Identifying the hoses

Originally Posted by Hasan Khurshid View Post
Thanks for your help. Is there any problem if running the car without heater?
No problem unless you live in a cold area or an area that receives cold weather. It would be better for you to get some block off caps or a hose that properly fits the fittings on the engine without kinking.
Freedo_Civegra is offline  
Old 05-24-2019, 11:35 PM
  #13  
Honda-Tech Member
Thread Starter
 
Join Date: Apr 2019
Posts: 34
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Identifying the hoses

Originally Posted by Freedo_Civegra View Post
No problem unless you live in a cold area or an area that receives cold weather. It would be better for you to get some block off caps or a hose that properly fits the fittings on the engine without kinking.
Thanks for the help. BTW I live in Karachi Pakistan and here it is very hot
Hasan Khurshid is offline  
 


Thread Tools
Search this Thread

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: